Chemical reactions
Reactants
Why mass doesn’t always appear
to be conserved
Products
Chemical which react together
Hydrocarbons
Chemicals which are formed in a
reaction
Methane
Chemicals containing hydrogen
and carbon often used a fuels
Carbon dioxide +
water
An example of a hydrocarbon
Displacement
Products of burning hydrogen
Oxidation
A reaction where a more reactive
metal steals from a less reactive
Combustion
A reaction where a chemical bonds
with oxygen
Exothermic
A common way in which a
chemical is oxidized
Endothermic
A reaction which gives out heat
Displacement and
oxidation
A reaction which takes in heat
Mass
Two examples of exothermic
reactions
Lost as gas
What is always conserved in a
reaction